Well, it's described as Singh's "own Indian art" and the term Mala Vidyea doesn't seem to show up in historical records of Indian physical culture, so my best guess is that it's his own thing, based on traditional exercises.

Well, it's described as Singh's "own Indian art" and the term Mala Vidyea doesn't seem to show up in historical records of Indian physical culture, so my best guess is that it's his own thing, based on traditional exercises.